For Buddhist, and specially Mahayana Buddhism, pain, release from the pain, path, all these exist within the realm of relative truth. Nothing else. If you are having a nightmare while sleeping on a nice bed, this is what Buddhist would say: Before you even slept, the nightmare did not exist. Of course not. That’s nothing unusual. But what the Buddhist are saying is: even as you are having the nightmare, while you are having the nightmare, actually it’s not happening. That’s a difficult to chew, this one. Because you will always: But I am being, you know, there is an earthquake, there is a monster about to eat me, all of that. But now there is another one that is even more difficult. Which is: after waking up from the nightmare to understand that the nightmare never existed, that’s even more difficult. Because that sense of relief from waking up from a nightmare is just so good. So how can you say that there was nothing. But anyway if you are to study and follow the Mahayana path, this is the view that you have to be brave enough to accept.